QUESTION

About how many people in the world are affected, die and survive malaria?

ANSWER

It has been estimated that about 3.3 billion people, or close to half the world’s population, is at risk of malaria infection at least at some point during the year. However, preventative measures mean that many fewer actually contract malaria in a given year—still, there are an estimated 216 million cases of malaria every year; of these, about 655,000 patients die. Most of these in children under the age of five, and most in sub-Saharan Africa.